nah dont know specs, its a T04E, is on an HKS manifold with HKS ex gate so is pretty big. its laggy but not too bad. it starts making boost around 2500 but thats like 01-0.2 bar but gets up to my 08.bar at around 4000rpm......
are you running a metal head gasket or forged pistons to take it to 18psi? i know their efficiency range is around 18-22psi but i cant take mine that far with stock injectors and internals....